| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.carbondata.core.index.dev.cgindex; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.carbondata.common.annotations.InterfaceAudience; |
| import org.apache.carbondata.common.annotations.InterfaceStability; |
| import org.apache.carbondata.core.datastore.block.SegmentProperties; |
| import org.apache.carbondata.core.index.Segment; |
| import org.apache.carbondata.core.index.dev.Index; |
| import org.apache.carbondata.core.indexstore.Blocklet; |
| import org.apache.carbondata.core.indexstore.PartitionSpec; |
| import org.apache.carbondata.core.metadata.schema.table.CarbonTable; |
| import org.apache.carbondata.core.scan.expression.Expression; |
| import org.apache.carbondata.core.scan.filter.executer.FilterExecutor; |
| |
| /** |
| * Index for Coarse Grain level, see {@link org.apache.carbondata.core.index.IndexLevel#CG} |
| */ |
| @InterfaceAudience.Developer("Index") |
| @InterfaceStability.Evolving |
| public abstract class CoarseGrainIndex implements Index<Blocklet> { |
| |
| @Override |
| public List<Blocklet> prune(Expression expression, SegmentProperties segmentProperties, |
| CarbonTable carbonTable, FilterExecutor filterExecutor) { |
| throw new UnsupportedOperationException("Filter expression not supported"); |
| } |
| |
| @Override |
| public long getRowCount(Segment segment, List<PartitionSpec> partitions) { |
| throw new UnsupportedOperationException("Operation not supported"); |
| } |
| |
| @Override |
| public Map<String, Long> getRowCountForEachBlock(Segment segment, List<PartitionSpec> partitions, |
| Map<String, Long> blockletToRowCountMap) { |
| throw new UnsupportedOperationException("Operation not supported"); |
| } |
| |
| @Override |
| public boolean validatePartitionInfo(List<PartitionSpec> partitions) { |
| throw new UnsupportedOperationException("Operation not supported"); |
| } |
| |
| @Override |
| public int getNumberOfEntries() { |
| // keep default, one record in one index |
| return 1; |
| } |
| } |